★Advanced optical technology and optical IC ,high precision

★Compatible with Windows 95/98/2000/NT/ME/XP ect.

★LED lights ：blue or seven color(optional)

★Color Printing ：all colors availuable(optional)

★High Resolution ：800dpi

★Keystroke lifecycle over 1,000,000 times

★Ergonomic & Comfortable design with good handle,agile to operate reducing weariness effectively

★20"Container:45400pcs,40"Container:92400pcs,45"HQ Container:102100pcs